From da2f1ef4104f90ee92d2ece245a60a5c3e0da9f5 Mon Sep 17 00:00:00 2001
From: vigdail <36927936+vigdail@users.noreply.github.com>
Date: Wed, 29 Apr 2026 05:06:22 +0500
Subject: [PATCH] fix final rate calculation for the National Bank of
 Kazakhstan (#565)

---
 pkg/exchangerates/national_bank_of_kazakhstan_datasource.go   | 2 +-
 .../national_bank_of_kazakhstan_datasource_test.go            | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/pkg/exchangerates/national_bank_of_kazakhstan_datasource.go b/pkg/exchangerates/national_bank_of_kazakhstan_datasource.go
index 5624516c..b0159f2e 100644
--- a/pkg/exchangerates/national_bank_of_kazakhstan_datasource.go
+++ b/pkg/exchangerates/national_bank_of_kazakhstan_datasource.go
@@ -116,7 +116,7 @@ func (e *NationalBankOfKazakhstanExchangeRate) ToLatestExchangeRate(c core.Conte
 		return nil
 	}
 
-	finalRate := rate / unit
+	finalRate := unit / rate
 	if math.IsInf(finalRate, 0) {
 		log.Warnf(c, "[national_bank_of_kazakhstan_datasource.ToLatestExchangeRate] final exchange rate calculation failed, currency is %s, unit is %s, rate is %s", e.Currency, e.Unit, e.Rate)
 		return nil
diff --git a/pkg/exchangerates/national_bank_of_kazakhstan_datasource_test.go b/pkg/exchangerates/national_bank_of_kazakhstan_datasource_test.go
index c5d1dfff..caf2a677 100644
--- a/pkg/exchangerates/national_bank_of_kazakhstan_datasource_test.go
+++ b/pkg/exchangerates/national_bank_of_kazakhstan_datasource_test.go
@@ -55,12 +55,12 @@ func TestNationalBankOfKazakhstanDataSource_StandardDataExtractExchangeRates(t *
 
 	assert.Contains(t, resp.ExchangeRates, &models.LatestExchangeRate{
 		Currency: "USD",
-		Rate:     "450.5",
+		Rate:     "0.0022197558268590455",
 	})
 
 	assert.Contains(t, resp.ExchangeRates, &models.LatestExchangeRate{
 		Currency: "VND",
-		Rate:     "0.0018",
+		Rate:     "555.5555555555555",
 	})
 }